Coffee Roaster., patent, May 6, 1918; (https://texashistory.unt.edu/ark:/67531/metapth1256564/m1/1/: accessed June 29, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Coffee Roaster., patent, May 6, 1918; (https://texashistory.unt.edu/ark:/67531/metapth1256564/m1/1/: accessed June 29, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .